多压凝汽器的优化  

Optimization of Multiple Pressure Condensers

作　　者：闫水保[1] 魏新利[1] 黄永志[1] 

机构地区：[1]郑州大学化工学院,郑州450002

出　　处：《动力工程》2007年第2期251-253,共3页Power Engineering

基　　金：河南省自然科学基金项目;河南省高校青年骨干教师资助计划项目

摘　　要：采用多压凝汽器是提高大型火电机组经济性的重要手段。提出了多压凝汽器的优化模型,用于计算多压凝汽器热经济性指标,完善了电站热力系统性能分析方法。分析了在凝汽器最小传热温差不变的情况下,采用多压凝汽器后传热面积的变化规律,并以实例说明这一方法。Adoption of multiple pressure condensers is an important way of raising the economic performance of fossil fired power units. An optimization model for multiple pressure condensers is proposed and formula for calculating the efficiency indices are deduced, herewith perfecting the way of analyzing the performance of thermal systems of power plants. Changes in the required heat transfer surface area, by adopting multiple pressure condensers, are calculated under the assumed precondition, that the minimal heat transfer temperature difference remains the same; an actual example is moreover presented for explaining how the method is to be used. Figs g and refs 3.

关 键 词：动力机械工程 多压凝汽器 优化模型 热力性能 计算 

分 类 号：TK264.11[动力工程及工程热物理—动力机械及工程]